2.1 Data Collecting Tools
The unit of Hoop and Circle and related pre-test and post-tests applied for the purpose of determining the
effect of the 4MAT teaching model upon students’ achievement at the 7th grade of Primary school, have been
prepared by taking the subjects and related objectives and acquisitions into consideration by the researcher. The
questions while developing the tests have been prepared by using the course book, the mathematics questions
which were asked in LGS (High School Entrance Examination) and in the Private Schools examinations. While
selecting the questions, aims and acquisitions related to in the unit of Hoop and Circle in the primary school
mathematics program of Ministry of National Education (2007) have been taken into consideration. Experts have
checked whether the selected program can measure the acquisitions in question or not. In accordance with the
experts’ opinions, 20 multiple questions appropriate for the aims and acquisitions have been prepared. For the
validity and reliability of the questions, the test has been conducted to 78 8th grade students. From the findings
of reliability analysis, 5 items whose total item correlations are below 0.30 have been taken out of the test. For
the purpose of measuring the attitudes of the students towards the mathematics course, the “Mathematics Course
Attitude Scale” that has been developed by Baykul (1990) has been used. The alpha reliability coefficient of the
scale is 0.96.